Split electric rice cooker

ABSTRACT

A split electric rice cooker includes a base, a cooker body, a weighing device, and a press cover. The weighing device includes a weighing sensor and a support leg. The weighing sensor includes a body portion and a cantilever weighing portion. The support leg penetrates downwards through the press cover. A limiting plate is provided in a weighing-device mounting groove of the base. When the cantilever weighing portion is bent upwards and deformed with respect to the body portion, the limiting plate is apt to abut against the cantilever weighing portion to limit a position of the cantilever weighing portion; or the support leg is provided with a limiting portion, and the limiting portion is apt to move with respect to the body portion along with the support leg to abut against a bottom surface of the body portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of International ApplicationPCT/CN2017/117263, filed Dec. 19, 2017, which claims the priority ofChinese Patent Application No. 201720340935.3 and Chinese PatentApplication No. 201720340885.9, both filed with the State IntellectualProperty Office of P. R. China on Mar. 31, 2017, the entire content ofwhich are incorporated herein by reference.

FIELD

The present disclosure relates to a technical field of householdappliances, and specifically to a split electric rice cooker.

BACKGROUND

In the related art, small home appliances have been popularized inpeople's lives, and each family basically possesses an electric ricecooker, an induction cooker and other household appliances. More andmore products may be placed in a kitchen with product diversification.In order to reduce household appliances and thus reduce their occupationof the kitchen space, the electric rice cooker and the induction cookercan be integrated into a split electric rice cooker. An existing splitelectric rice cooker is only provided with a simple weighing device, andwhen a lot of food is placed in a cooker body, a maximum range of theweighing device will be exceeded, causing a weighing module to bedamaged and causing a weighing function to fail.

SUMMARY

The present disclosure seeks to solve one of the above technicalproblems existing in the related art to at least some extent. Thus, thepresent disclosure proposes a split electric rice cooker that is able toprovide overload protection for a weighing sensor.

The split electric rice cooker according to embodiments of the presentdisclosure includes: a base provided with a weighing-device mountinggroove at a bottom thereof, a limiting plate being provided in theweighing-device mounting groove; a cooker body apt to rest on the baseand separable with respect to the base; a weighing device provided inthe weighing-device mounting groove, and including a weighing sensor anda support leg connected with the weighing sensor, the weighing sensorbeing fixed in the weighing-device mounting groove and including a bodyportion and a cantilever weighing portion, the cantilever weighingportion being provided to the body portion, the cantilever weighingportion being located below the limiting plate, and when the cantileverweighing portion being bent upwards and deformed with respect to thebody portion, the limiting plate being apt to abut against thecantilever weighing portion to limit a position of the cantileverweighing portion; and a press cover provided to the bottom of the baseand shielding the weighing-device mounting groove, the press cover beingprovided with a press-cover clearance hole for the support leg to passdownwards.

The split electric rice cooker according to embodiments of the presentdisclosure can provide overload protection for the weighing sensor,thereby prolonging service life of the weighing sensor.

In addition, the split electric rice cooker according to embodiments ofthe present disclosure can further have the additional technicalfeatures as follows.

According to some embodiments of the present disclosure, a support plateand a vertical snapping plate are provided in the weighing-devicemounting groove, and the weighing sensor is sandwiched between thevertical snapping plate and the support plate.

According to some embodiments of the present disclosure, the supportplate includes: a first support plate, a second support plate, a thirdsupport plate, and a fourth support plate; the first support plate, thesecond support plate, the third support plate, and the fourth supportplate are provided to a first side wall, a second side wall, a thirdside wall and a fourth side wall of the weighing-device mounting grooverespectively; the first side wall, the second side wall, the third sidewall and the fourth side wall are connected successively.

According to some embodiments of the present disclosure, the bodyportion is an annular frame body, and the cantilever weighing portion isprovided within the body portion.

According to some embodiments of the present disclosure, the cantileverweighing portion includes a first cantilever and a second cantilever;the first cantilever is T-shaped and includes a transverse section and alongitudinal section; the longitudinal section is connected with thebody portion, and two ends of the transverse section are separatelyprovided with the second cantilever.

According to some embodiments of the present disclosure, the bodyportion includes: a first frame bar, a second frame bar, a third framebar, and a fourth frame bar connected successively; the first frame baris adjacent to the transverse section; the first frame bar, the secondframe bar, the third frame bar, and the fourth frame bar are apt to abutagainst the first support plate, the second support plate, the thirdsupport plate, and the fourth support plate respectively.

According to some embodiments of the present disclosure, the firstsupport plate has an inverted three-step structure; the third supportplate has an inverted two-step structure; the first frame bar is apt toabut against a bottom surface of a second step of the first supportplate; the transverse section is suspended below a bottom surface of afirst step of the first support plate; the first step of the firstsupport plate constitutes the limiting plate; and the third frame bar isapt to abut against a bottom surface of a first step of the thirdsupport plate.

According to some embodiments of the present disclosure, the bottomsurface of the second step of the first support plate is flush with thebottom surface of the first step of the third support plate.

According to some embodiments of the present disclosure, a third step ofthe first support plate and a second step of the third support plateclamp and respectively abut against the first frame bar and the thirdframe bar, so as to limit the position of the body portion in adirection parallel to the longitudinal section.

According to some embodiments of the present disclosure, a bottomsurface of the third step of the first support plate and a bottomsurface of the second step of the third support plate are eachconfigured as a guide bevel.

According to some embodiments of the present disclosure, the secondsupport plate and the fourth support plate are respectively locatedoutside the second cantilevers of the corresponding sides to evade thesecond cantilevers.

According to some embodiments of the present disclosure, a limitingprotrusion is provided on each of the second support plate and thefourth support plate, and the limiting protrusion on the second supportplate and the limiting protrusion on the fourth support plate clamp andrespectively abut against the second frame bar and the fourth frame bar,so as to limit the position of the body portion in a direction parallelto the transverse section.

According to some embodiments of the present disclosure, each of thesecond support plate and the fourth support plate is divided into twosections spaced apart from each other, and one vertical snapping plateis disposed between the two sections.

According to some embodiments of the present disclosure, the bottom ofthe base is further provided with an catching groove, the press cover isfurther provided with a pre-assembled catching portion, and thepre-assembled catching portion is engaged within the catching groove.

According to some embodiments of the present disclosure, the press coveris further fastened to the bottom of the base through a press-coverthreaded assembly.

According to some embodiments of the present disclosure, a distancebetween the cantilever weighing portion and the limiting plate is L,deformation displacement of the cantilever weighing portion with respectto the body portion is associated with the weight to be weighed, and thedeformation displacement of the cantilever weighing portion is S whenthe weighing sensor 510 is in a maximum range, in which L≤S.

According to some embodiments of the present disclosure, the press coverand the support leg are integrally formed, and the support leg issupported on a bottom surface of the cantilever weighing portion and isable to be deformed along with the press cover and push the cantileverweighing portion upwards

According to some embodiments of the present disclosure, the weighingsensor is provided with a mounting hole, an upper surface of the supportleg is fixed with a fixing column, the fixing column is provided throughthe mounting hole and has an upper end formed with a diameter-enlargedportion, and a radial dimension of the diameter-enlarged portion islarger than a radial dimension of the mounting hole, such that theweighing sensor is clamped and fixed between the diameter-enlargedportion and the support leg.

The weighing device according to embodiments of the present disclosureincludes: a weighing sensor including a body portion and a cantileverweighing portion, the cantilever weighing portion being provided to thebody portion; a support leg supported on a bottom surface of thecantilever weighing portion and fixed with the cantilever weighingportion; a limiting portion provided on the support leg and locatedbelow the body portion, the limiting portion being apt to move upwardswith respect to the body portion along with the support leg to abutagainst a bottom surface of the body portion.

The weighing device according to embodiments of the present disclosurecan prevent the weighing sensor from being overloaded and failing, andprolong service life of the weighing sensor.

In some embodiments of the present disclosure, a distance between thelimiting portion and the body portion is L, deformation displacement ofthe cantilever weighing portion with respect to the body portion isassociated with the weight to be weighed, and the deformationdisplacement of the cantilever weighing portion is S when the weighingsensor is in a maximum range, in which L≤S.

In some embodiments of the present disclosure, the body portion is anannular frame body, and the cantilever weighing portion is providedwithin the body portion.

In some embodiments of the present disclosure, the cantilever weighingportion includes a first cantilever and a second cantilever; the firstcantilever is fixed with the body portion; the second cantilever isfixed with the first cantilever and also fixed with the support leg.

In some embodiments of the present disclosure, the second cantilever islocated at each of two sides of the first cantilever.

In some embodiments of the present disclosure, the first cantilever isT-shaped and includes a transverse section and a longitudinal section,and two ends of the transverse section are separately provided with thesecond cantilever.

In some embodiments of the present disclosure, the support leg includesa support-leg body and a support block provided to the support-leg body,the support block being fixed with the second cantilever.

In some embodiments of the present disclosure, respective lower surfacesof the first cantilever and the second cantilever are flush with eachother, and both abut against an upper surface of the support block.

In some embodiments of the present disclosure, the second cantilever isprovided with a mounting hole; the weighing device further includes aweighing-device threaded fastener, and the weighing-device threadedfastener is fixed by being threaded with the support block after passingthrough the mounting hole from the top downwards.

In some embodiments of the present disclosure, a distance betweenfacing-away outer sides of the two second cantilevers is greater than orequal to a transverse length of the support block.

In some embodiments of the present disclosure, the limiting portion isprovided to an end face of each of two transverse ends of the supportblock.

In some embodiments of the present disclosure, a hollowed groove isdefined between the body portion and the second cantilever, and an outerside surface of the limiting portion is outside an outer edge of thehollowed groove.

In some embodiments of the present disclosure, the second cantilevers attwo sides of the first cantilever are arranged symmetrically, and thefirst cantilever is spaced apart from and arranged parallel to thesecond cantilever.

The split electric rice cooker according to embodiments of the presentdisclosure includes the weighing device.

In some embodiments of the present disclosure, the split electric ricecooker further includes: a base provided with a weighing-device mountinggroove at a bottom thereof, the weighing sensor being fixed in theweighing-device mounting groove; a cooker body apt to rest on the baseand separable with respect to the base; a press cover provided to thebottom of the base and shielding the weighing-device mounting groove.The press cover is integrally formed with the support leg, the supportleg is supported on a bottom surface of the cantilever weighing portion,and the support leg can be deformed along with the press cover and pushthe cantilever weighing portion upwards; or the press cover is providedwith a press-cover clearance hole for the support leg to pass downwards.

In some embodiments of the present disclosure, the weighing sensor isprovided with a mounting hole, an upper surface of the support leg isfixed with a fixing column, the fixing column is provided through themounting hole and has an upper end formed with a diameter-enlargedportion, and a radial dimension of the diameter-enlarged portion islarger than a radial dimension of the mounting hole, such that theweighing sensor is clamped and fixed between the diameter-enlargedportion and the support leg.

Embodiments of present disclosure will be given in part in the followingdescriptions, become apparent in part from the following descriptions,or be learned from the practice of the embodiments of the presentdisclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic view of a split electric rice cooker according toembodiments of the present disclosure.

FIG. 2 is a partially enlarged view of FIG. 1.

FIG. 3 is a bottom schematic view of a split electric rice cookeraccording to an embodiment of the present disclosure, with a part ofpress covers being removed.

FIG. 4 is a partially enlarged view of FIG. 3.

FIG. 5 is a sectional schematic view of a split electric rice cookeraccording to an embodiment of the present disclosure.

FIG. 6 is a schematic view of a press cover and a support leg of a splitelectric rice cooker according to another embodiment of the presentdisclosure.

FIG. 7 is an assembly schematic view of a weighing sensor and a supportleg according to an embodiment of the present disclosure.

FIG. 8 is an exploded schematic view of a weighing device according toan embodiment of the present disclosure.

FIG. 9 is a sectional schematic view of a weighing device according toan embodiment of the present disclosure.

FIG. 10 is another schematic view of a weighing device according to anembodiment of the present disclosure.

FIG. 11 is a partial schematic view of a split electric rice cookeraccording to embodiments of the present disclosure.

FIG. 12 is a partially enlarged view of area A circled in FIG. 11.

FIG. 13 is a partially exploded schematic view of a split electric ricecooker according to an embodiment of the present disclosure.

FIG. 14 is a schematic view of a press cover and a support leg of asplit electric rice cooker according to an embodiment of the presentdisclosure.

REFERENCE NUMERALS

-   -   split electric rice cooker 1000, base 100, weighing-device        mounting groove 120, first side wall 121, second side wall 122,        third side wall 123, fourth side wall 124, first support plate        131, second support plate 132, third support plate 133, fourth        support plate 134, vertical snapping plate 140, limiting plate        160,    -   cooker body 200, base plate 210, base-plate through hole 214,        pot body 220, inner-pot heat insulation piece 230, bottom-wall        protrusion 234,    -   weighing device 500,    -   weighing sensor 510, body portion 511, cantilever weighing        portion 512, first cantilever 5121, transverse section 5121 a,        longitudinal section 5121 b, second cantilever 5122, mounting        hole 5122 a, hollowed groove 513,    -   support leg 520, support-leg body 521, support block 522,        limiting portion 524, fixing column 523, diameter-enlarged        portion 5231,    -   weighing-device threaded fastener 530,    -   press cover 600, press-cover clearance hole 601, weakening        groove 603.

DETAILED DESCRIPTION

The embodiments of the present disclosure are described in detail below,and examples of the embodiments are shown in the accompanying drawings,in which the same or similar reference numerals denote the same orsimilar elements or elements having the same or similar functionsthroughout. The embodiments described herein with reference to drawingsare explanatory, illustrative, and used to generally understand thepresent disclosure, and should not be construed to limit the presentdisclosure.

A split electric rice cooker 1000 according to embodiments of thepresent disclosure will be described in detail with reference to FIG. 1to FIG. 7.

As illustrated in FIG. 1, the split electric rice cooker 1000 accordingto embodiments of the present disclosure includes a base 100, a cookerbody 200, a weighing device 500 and a press cover 600. The base 100 isprovided with a weighing-device mounting groove 120 at the bottomthereof, a limiting plate 160 is provided in the weighing-devicemounting groove 120 (see FIG. 5), the cooker body is apt to rest on thebase 100 and is separable with respect to the base 100, and the weighingdevice 500 is provided in the weighing-device mounting groove 120.

The weighing device 500 includes a weighing sensor 510 and a support leg520 connected with the weighing sensor 510. The weighing sensor 510 isfixed in the weighing-device mounting groove 120 and includes a bodyportion 511 and a cantilever weighing portion 512. The cantileverweighing portion 512 is provided to the body portion 511, and thecantilever weighing portion 512 is located below the limiting plate 160.The press cover 600 is provided at the bottom of the base 100 andshields the weighing-device mounting groove 120, and the press cover 600is provided with a press-cover clearance hole 601 for the support leg520 to pass downwards. When the cantilever weighing portion 512 is bentupwards and deformed with respect to the body portion 511, the limitingplate 160 is apt to abut against the cantilever weighing portion 512 tolimit the position of the cantilever weighing portion 512.

For the split electric rice cooker according to embodiments of thepresent disclosure, by providing the limiting plate 160 in theweighing-device mounting groove 120, when the cooker body is overweight,the limiting plate 160 limits the position of the cantilever weighingportion 512 to prevent the cantilever weighing portion 512 fromcontinuing to generate relative deformation with respect to the bodyportion 511, so as to provide overload protection for the weighingsensor 510 and guarantee normal use of the weighing function.

It should be noted that only when the weight applied to the body portion511 exceeds a tolerable range of the weighing sensor 510, the limitingplate 160 abuts against a bottom surface of the body portion 511; whenthe weighing sensor 510 is in normal use, the limiting plate 160 movestowards the body portion 511 and remains at a certain balanced position,in which case the limiting plate 160 is spaced apart from the bottomsurface of the body portion 511 by a certain distance. Thus, theweighing sensor 510 can be prevented from failure due to overloading,while the normal use thereof can be ensured.

In the split electric rice cooker according to an embodiment of thepresent disclosure, a support plate and a vertical snapping plate 140are provided in the weighing-device mounting groove 120, and theweighing sensor 510 is sandwiched between the vertical snapping plate140 and the support plate. Therefore, the weighing sensor 510 isfastened by the support plate and the vertical snapping plate 140together provided in the weighing-device mounting groove 120, such thatnot only the structure becomes simple and compact, but also thedisassembly is convenient.

The vertical snapping plate 140 can fasten the weighing sensor 510 in avertical direction, and the vertical snapping plate 140 and the supportplate together can limit the weighing sensor 510 in a horizontaldirection to prevent the weighing sensor 510 from rotating.

According to some embodiments of the present disclosure, the supportplate includes a first support plate 131, a second support plate 132, athird support plate 133, and a fourth support plate 134. The firstsupport plate 131, the second support plate 132, the third support plate133, and the fourth support plate 134 are provided to a first side wall121, a second side wall 122, a third side wall 123 and a fourth sidewall 124 of the weighing-device mounting groove 120 respectively, inwhich the first side wall 121, the second side wall 122, the third sidewall 123 and the fourth side wall 124 are connected successively.

Specifically, the weighing-device mounting groove 120 exhibits asubstantially square groove, the first side wall 121 and the third sidewall 123 of the weighing-device mounting groove 120 are opposite, thesecond side wall 122 and the fourth side wall 124 thereof are opposite,and the first to fourth side walls are provided with the first to fourthsupport plates respectively. An upper surface of the weighing sensor 510is opposite to respective lower surfaces of the first to fourth supportplates, and a lower surface of the weighing sensor 510 abuts against asnap hook of the vertical snapping plate 140, so as to limit theposition of the weighing sensor 510 in the vertical direction;respective side surfaces of the first to fourth side walls abut againstan outer edge of the weighing sensor 510, so as to limit the position ofthe weighing sensor 510 in the horizontal direction.

Therefore, the horizontal limiting of the weighing sensor 510 isachieved through the first to fourth support plates, to effectivelyprevent horizontal rotation of the weighing sensor 510, and enhancestability and reliability of the weighing sensor 510 fixed in theweighing-device mounting groove 120.

According to some embodiments of the present disclosure, the weighingsensor 510 includes the body portion 511 and the cantilever weighingportion 512. The body portion 511 is an annular frame body, and thecantilever weighing portion 512 is provided inside the body portion 511.Specifically, as illustrated in FIG. 2, the cantilever weighing portion512 is connected with a part of an inner edge of the body portion 511,the support leg 520 is fixedly connected with a cantilever supportportion, and the body portion 511 and the weighing-device mountinggroove 120 are fixedly connected.

In this way, the support leg 520 of the base 100 is placed on theground, and then the cooker body is placed on the base 100; since theweight imposed on the body portion 511 increases (i.e. the added weightof the cooker body), the body portion 511 moves downwards under theaction of weight increase and drives the cantilever weighing portion 512to produce elastic deformation; the weighing sensor 510 sends acorresponding weighing signal based on the amount of elastic deformationand realizes measurement of the weight of the cooker body.

According to some embodiments of the present disclosure, the cantileverweighing portion 512 includes a first cantilever 5121 and a secondcantilever 5122. The first cantilever 5121 is T-shaped and includes atransverse section 5121 a and a longitudinal section 5121 b, thelongitudinal section 5121 b is connected with the body portion 511, andtwo ends of the transverse section 5121 a are separately provided withthe second cantilever 5122. Specifically, referring to FIG. 2, thelongitudinal section 5121 b has a first end connected with the bodyportion 511 and a second end connected with a middle portion of thetransverse section 5121 a; two ends of the transverse section 5121 a areconnected with two second cantilevers 5122 respectively; the secondcantilever 5122 is provided with a mounting hole for fixed connectionwith the support leg 520, and a screw 530 passes through the secondcantilever 5122 and the support leg 520 to fix the support leg 520 onthe cantilever weighing portion 512.

Therefore, after the cooker body is placed on the base 100, the bodyportion 511 moves downwards under the action of the gravity of thecooker body, and drives the longitudinal section 5121 b to move andproduce elastic deformation with respect to the transverse section 5121a and the second cantilever 5122. The cantilever weighing portion 512with the above structure can produce the elastic deformation easily andhave high sensitivity of weight sensing, and the deformation of thecantilever weighing portion 512 is distributed more evenly, resulting ina more accurate detection result.

In some embodiments, the body portion 511 includes a first frame bar5111, a second frame bar 5112, a third frame bar 5113, and a fourthframe bar 5114 connected successively. The first frame bar 5111 isadjacent to the transverse section 5121 a. The first frame bar 5111, thesecond frame bar 5112, the third frame bar 5113, and the fourth framebar 5114 are apt to abut against the first support plate 131, the secondsupport plate 132, the third support plate 133, and the fourth supportplate 134 respectively.

In a specific embodiment shown in FIG. 2, the first frame bar 5111 andthe third frame bar 5113 are opposite, while the second frame bar 5112and the fourth frame bar 5114 are opposite. An inner edge of the firstframe bar 5111 is adjacent to the transverse section 5121 a of thecantilever weighing portion 512, an inner edge of the third frame bar5113 is connected with the longitudinal section 5121 b of the cantileverweighing portion 512, an inner edge of the second frame bar 5112 isadjacent to one of the second cantilevers 5122, and an inner edge of thefourth frame bar 5114 is adjacent to the other second cantilever 5122.

Thus, the structure of the cantilever weighing portion 512 is morecompact, which shortens the volume of the weighing sensor 510, saves amounting space of the weighing-device mounting groove 120, and hencemakes the structure of the split electric rice cooker more compact.

According to some embodiments of the present disclosure, the firstsupport plate 131 has an inverted three-step structure, and the thirdsupport plate 133 has an inverted two-step structure. The first framebar 5111 is apt to abut against a bottom surface of a second step of thefirst support plate 131; the transverse section 5121 a is suspendedbelow a bottom surface of a first step 1311 of the first support plate131; the first step 1311 of the first support plate 131 constitutes thelimiting plate 160; and the third frame bar 5113 is apt to abut againsta bottom surface of a first step 1331 of the third support plate 133.

Specifically, as illustrated in FIG. 2, a third step 1313 of the firstsupport plate 131 is connected with the first side wall 121 of theweighing-device mounting groove 120; the third step 1313, the secondstep 1312 and the first step 1311 are arranged successively from outsideto inside; and a clearance space is defined below the first step 1311and at an inner side of the second step 1312. A second step 1332 of thethird support plate 133 is connected with the third side wall 123 of theweighing-device mounting groove 120, and the second step 1332 and thefirst step 1331 are arranged successively from outside to inside.

Therefore, an upper surface of the first frame bar 5111 of the bodyportion 511 of the weighing sensor 510 abuts against the second step1312 of the first support plate 131, and an upper surface of the thirdframe bar 5113 of the body portion 511 abuts against the first step 1331of the third support plate 133; meanwhile, respective upper surfaces ofthe second frame bar 5112 and the fourth frame bar 5114 of the bodyportion 511 abut against the vertical snapping plate 140, such that theycooperate with one another to realize vertical position-limiting of theweighing sensor 510.

According to some embodiments of the present disclosure, the bottomsurface of the second step 1312 of the first support plate 131 is flushwith the bottom surface of the first step 1331 of the third supportplate 133. Thus, the body portion 511 of the weighing sensor 510 is in ahorizontal state after assembled with various support plates and issubject to a more balanced force, and the support from the support leg520 connected with the weighing sensor 510 is more stable.

Combining FIG. 2 and FIG. 4, the third step 1313 of the first supportplate 131 and the second step 1332 of the third support plate 133 clampand respectively abut against the first frame bar 5111 and the thirdframe bar 5113, so as to limit the position of the body portion 511 in adirection parallel to the longitudinal section 5121 b. Specifically, thefirst frame bar 5111 and the third frame bar 5113 are opposite in alongitudinal direction, a side surface of the third step 1313 of thefirst support plate 131 abuts against an outer edge of the first framebar 5111, and a side surface of the second step 1332 of the thirdsupport plate 133 abuts against an outer edge of the third frame bar5113. Thus, the body portion 511 is limited in the longitudinaldirection and prevented from shaking in the longitudinal direction.

Referring to FIG. 2, a bottom surface of the third step 1313 of thefirst support plate 131 and a bottom surface of the second step 1332 ofthe third support plate 133 are both configured as a guide bevel.Specifically, the guide bevel gradually extends outwards from up todown. Thus, the provision of the guide bevel facilitates theinstallation of the weighing sensor 510 and makes the installation moreconvenient.

Further, referring to FIGS. 3 and 4, the second support plate 132 andthe fourth support plate 134 are respectively located outside the secondcantilevers 5122 of the corresponding sides to evade the secondcantilevers 5122. Specifically, a clearance groove is defined betweenthe outside of the second cantilever 5122 and the body portion 511.Thus, the relative deformation between the cantilever weighing portion512 and the body portion 511 is smooth and unimpeded, to avoid aphenomenon of jamming, thereby improving the operational stability andreliability of the split electric rice cooker.

According to some embodiments of the present disclosure, as shown inFIG. 2, a limiting protrusion 135 is provided on each of the secondsupport plate 132 and the fourth support plate 134, and the limitingprotrusion 135 on the second support plate 132 and the limitingprotrusion 135 on the fourth support plate 134 clamp and respectivelyabut against the second frame bar 5112 and the fourth frame bar 5114, soas to limit the position of the body portion 511 in a direction parallelto the transverse section 5121 a.

Specifically, the second frame bar 5112 and the fourth frame bar 5114are opposite in a transverse direction, the limiting protrusion 135 ofthe second support plate 132 abuts against an outer edge of the secondframe bar 5112, and the limiting protrusion 135 of the fourth supportplate 134 abuts against an outer edge of the fourth frame bar 5114,thereby achieving the position-limiting of the body portion 511 in thetransverse direction.

In one embodiment, each of the second support plate 132 and the fourthsupport plate 134 is divided into two sections spaced apart from eachother, and one vertical snapping plate 140 is disposed between the twosections. An inner side of the vertical snapping plate 140 may abutagainst or be spaced apart from the corresponding support plate. Thus, asnapping force and a clamping force distributed on the body portion 511can be distributed more evenly, thereby avoiding concentrateddistribution of stress on the body portion 511.

In some embodiments, the bottom of the base 100 is further provided withan catching groove 150, the press cover 600 is further provided with apre-assembled catching portion 602, and the pre-assembled catchingportion 602 is engaged within the catching groove 150. Referring to FIG.2, the press cover 600 is in a substantially square shape, and twoopposite edges of the press cover 600 are provided with thepre-assembled catching portions 602. Correspondingly, the shape of theweighing-device mounting groove 120 is consistent with that of the presscover 600. The catching groove 150 is located at an outer side of theweighing-device mounting groove 120 and in one-to-one correspondence tothe pre-assembled catching portion 602. During the assembly, thepre-assembled catching portion 602 of the press cover 600 is engaged inthe catching groove 150 of the base 100 to implement the pre-assembly ofthe press cover 600.

Certainly, the number of the pre-assembled catching portion 602 and thecatching groove 150 is not limited to two illustrated in FIG. 2, but maybe more than two.

In order to enhance the tightness and reliability of the connectionbetween the press cover 600 and the base 100, the press cover 600 can befastened to the bottom of the base 100 through a press-cover threadedassembly 703. Specifically, each of the other two opposite edges of thepress cover 600 is provided with a mounting ear having a mounting hole,the base 100 has a threaded hole corresponding to the mounting hole, anda screw of the press-cover threaded assembly 703 passes through themounting hole and is tightly fitted with the threaded hole to fasten thepress cover 600 on the base 100.

In a specific embodiment illustrated in FIG. 5, a distance between thecantilever weighing portion 512 and the limiting plate 160 is L, thedeformation displacement of the cantilever weighing portion 512 withrespect to the body portion 511 is associated with the weight to beweighed, and the deformation displacement of the cantilever weighingportion 512 is S when the weighing sensor 510 is in a maximum range, inwhich L≤S. Thus, it is possible to provide better overload protectionfor the weighing sensor 510, to avoid the occurrence of the phenomenonthat the weighing sensor 510 fails because of exceeding the range duringoperation.

In a specific embodiment illustrated in FIG. 1, the press cover 600 isprovided with the press-cover clearance hole 601 for the support leg 520to pass downwards.

Certainly, the present disclosure is not limited thereto, and the presscover 600 can be connected with the support leg 520. For example, in aspecific embodiment illustrated in FIG. 7, the press cover 600 and thesupport leg 520 are integrally formed, and the support leg 520 issupported on a bottom surface of the cantilever weighing portion 512,and can be deformed along with the press cover 600 and push thecantilever weighing portion 512 upwards.

Thus, when the cooker body is mounted onto the base 100, the weighingsensor 510 is deformed under the action of gravity of the cooker body,such that the base 100 is able to weigh the cooker body and hence judgeswhether the cooker body matches it based on a weighing result, therebyimproving accuracy of matching the base 100 with the cooker body.Additionally, by sealing the weighing sensor 510 in the weighing-devicemounting groove 120 through the press cover 600, not only the weighingsensor 510 can be protected well, but also the split electric ricecooker has a more beautiful appearance.

According to some embodiments of the present disclosure, the press cover600 is provided with a weakening structure. It could be understood thatthe weakening structure means weakening the rigidity of the press cover600 to make the press cover 600 more easily deformed. Thus, when thecooker body is mounted on the base 100, the press cover 600 having theweakening structure is more easily deformed and generates a largeramount of deformation. In such a way, the pushing force of the presscover 600 on the cantilever weighing portion 512 is greater, whichimproves the sensitivity of the weighing device 510 and the accuracy ofthe measurement result.

In a specific embodiment illustrated in FIG. 6, the weakening structureis a weakening groove 603 penetrating the press cover 600. Thus, byproviding the weakening groove 603 in the press cover 600, it ispossible to weaken the rigidity of the press cover 600, save materials,and reduce costs.

In some embodiments, as illustrated in FIG. 7, the weighing sensor 510is provided with a mounting hole 5122 a; an upper surface of the supportleg 520 is fixed with a fixing column 523; the fixing column 523 isprovided through the mounting hole 5122 a, and an upper end of thefixing column 523 is formed with a diameter-enlarged portion 5231; and aradial dimension of the diameter-enlarged portion 5231 is larger than aradial dimension of the mounting hole 5122 a, such that the weighingsensor 510 is clamped and fixed between the diameter-enlarged portion5231 and the support leg 520.

A split electric rice cooker according to embodiments of the presentdisclosure will be described in detail with reference to FIG. 8 to FIG.14.

As illustrated in FIG. 8, a weighing device 500 according to embodimentsof the present disclosure includes a weighing sensor 510, a support leg520 and a limiting portion 524. The weighing sensor 510 includes a bodyportion 511 and a cantilever weighing portion 512, and the cantileverweighing portion 512 is provided to the body portion 511. The supportleg 520 is supported on a bottom surface of the cantilever weighingportion 512 and fixed with the cantilever weighing portion 512. Thelimiting portion 524 is provided to the support leg 520 and locatedbelow the body portion 511, and the limiting portion 524 is apt to moveupwards along with the support leg 520 with respect to the body portion511 so as to abut against a bottom surface of the body portion 511.

For the weighing device 500 according to the embodiments of the presentdisclosure, the body portion 511 moves downwards with respect to thecantilever weighing portion 512, the support leg 520 and the limitingportion 524 under the gravity of an object to be weighed, that is, thesupport leg 520 and the limiting portion 524 together move upwards withrespect the body portion 511. When the object to be weighed reaches apreset value, the limiting portion 524 abuts against the bottom surfaceof the body portion 511, to prevent the cantilever weighing portion 512of the weighing sensor 510 from being excessively deformed and thus fromgenerating an unrecoverable plastic deformation. Therefore, it ispossible to avoid the failure of the weighing sensor 510 due tooverloading, and prolong the service life of the weighing sensor 510.

It should be noted that only when the weight applied to the body portion511 exceeds a tolerable range of the weighing sensor 510, the limitingportion 524 abuts against the bottom surface of the body portion 511;when the weighing sensor 510 is in normal use, the limiting portion 524moves towards the body portion 511 and remains at a certain balancedposition, in which case the limiting portion 524 is spaced apart fromthe bottom surface of the body portion 511 by a certain distance. Thus,it is possible to avoid the failure of the weighing sensor 510 due tooverloading and at the same time guarantee the normal use of theweighing sensor 510.

In a specific embodiment illustrated in FIG. 9, a distance between thelimiting portion 524 and the body portion 511 is L, the deformationdisplacement of the cantilever weighing portion 512 with respect to thebody portion 511 is associated with the weight to be weighed, and thedeformation displacement of the cantilever weighing portion 512 is Swhen the weighing sensor 510 is in a maximum range, in which L≤S. Thatis, the maximum allowable deformation amount of the cantilever weighingportion 512 which guarantees the normal operation of the weighing sensor510 is S, and in this embodiment the maximum deformation amount of thecantilever weighing portion 512 is L, such that the weighing sensor 510can always be controlled within the working range.

In some embodiments, the body portion 511 is an annular frame body, andthe cantilever weighing portion 512 is provided inside the body portion511. Specifically, as illustrated in FIG. 8, the cantilever weighingportion 512 is provided inside the body portion 511 and fixedlyconnected with an inner edge of the body portion 511; the support leg520 and the cantilever weighing portion 512 are opposite in anup-and-down direction and fixedly connected; the limiting portion 524 isconnected to an outer side of the support leg 520 and is opposite to thebody portion 511 in the up-and-down direction. Thus, the weighing sensor510 occupies a smaller space and has a more compact structure.

Referring to FIG. 8, the cantilever weighing portion 512 includes afirst cantilever 5121 and a second cantilever 5122. The first cantilever5121 is fixed with the body portion 511, and the second cantilever 5122is fixed with the first cantilever 5121 and is also fixed with thesupport leg 520. Further, the second cantilever 5122 is separatelylocated at two sides of the first cantilever 5121. That is, two secondcantilevers 5122 are provided, and the two second cantilevers 5122 areconnected to two transverse sides of the first cantilever 5121respectively. Thus, the cantilever weighing portion 512 is more evenlystressed, thereby avoiding being damaged by stress concentration.

Further, the first cantilevers 5121 at two sides of the secondcantilever 5122 are arranged symmetrically, and the first cantilever5121 is spaced apart from and arranged parallel to the second cantilever5122. Thus, the structure of the weighing sensor 510 is more compact.

In one embodiment, the first cantilever 5121 is T-shaped and includes atransverse section 5121 a and a longitudinal section 5121 b, and twoends of the transverse section 5121 a are separately provided with thesecond cantilever 5122. Specifically, referring to FIG. 9, thelongitudinal section 5121 b has a first end connected with the bodyportion 511 and a second end connected with a middle portion of thetransverse section 5121 a; two ends of the transverse section 5121 a areconnected with two second cantilevers 5122 respectively. Thus, when thebody portion 511 moves downwards under the action of the object to beweighed, the support leg 520 and the second cantilever 5122 arestationary, and hence relative displacement between the secondcantilever 5122 and the body portion 511 is generated. In such a case,the longitudinal section 5121 b of the first cantilever 5121 generateselastic deformation under the action of the relative movement betweenthe body portion 511 and the support leg 520, whereby the weighingsensor 510 can measure the weight of the object based on the deformationamount.

Certainly, the present disclosure is not limited thereto, and the shapeof the cantilever weighing portion 512 is not limited to the shapeillustrated in FIG. 1, but can be U-shaped, T-shaped, V-shaped or thelike. In one embodiment, the shape of the cantilever weighing portion512 and the body portion 511 as needed.

Referring to FIG. 8, the support leg 520 includes a support-leg body 521and a support block 522 provided to the support-leg body 521, and thesupport block 522 is fixed with the second cantilever 5122. Further,respective lower surfaces of the first cantilever 5121 and the secondcantilever 5122 are flush with each other, and abut against an uppersurface of the support block 522. Thus, it is possible to ensure thetightness and stability of connection between the first cantilever 5121and the support block 522, and provide sufficient space for thedeformation of the first cantilever 5121.

In some embodiments, the second cantilever 5122 is provided with amounting hole 5122 a; the weighing device 500 further includes aweighing-device threaded fastener 530; and the weighing-device threadedfastener 530 is fixed by being threaded with the support block 522 afterpassing through the mounting hole 5122 a from the top downwards. Thus,when the weighing sensor 510 goes wrong, it is more convenient todisassemble and repair.

As illustrated in FIG. 10, a distance between facing-away outer sides ofthe two second cantilevers 5122 is greater than or equal to a transverselength of the support block 522. Thus, the body portion 511 is preventedfrom interfering with an edge of the support block 522 when thecantilever weighing portion 512 moves with respect to the body portion511 during the weighing, and hence a phenomenon of jamming during theweighing is avoided, thereby enhancing the operational reliability andstability of the weighing device 500.

In some embodiments, the limiting portion 524 is provided to an end faceof each of two transverse ends of the support block 522. Thus, betterprotection of the weighing sensor 510 can be achieved. Certainly, thepresent disclosure is not limited thereto, and for example, in someother embodiments, the limiting portion 524 can be provided to an endface of each of two longitudinal ends of the support block 522.

A hollowed groove 513 is defined between the body portion 511 and thesecond cantilever 5122, and an outer side surface of the limitingportion 524 is outside an outer edge of the hollowed groove 513, asillustrated in FIG. 1. Thus, the cantilever weighing portion 512adopting the above structure can produce the elastic deformation moreeasily and have high sensitivity of weight sensing, and the deformationof the cantilever weighing portion 512 is distributed more evenly,resulting in a more accurate detection result.

It could be understood that the weighing device 500 according to theembodiments of the present disclosure can be applied to the splitelectric rice cooker, and the weighing device 500 is provided to thebase of the split electric rice cooker to measure the weight of thecooker body, thereby achieve proper match between the cooker body andthe base.

A split electric rice cooker 1000 according to embodiments of thepresent disclosure includes the above weighing device 500 according tothe above embodiments. The split electric rice cooker 1000 can avoid thefailure of the weighing sensor 510 due to overloading and prolong theservice life of the weighing sensor 510, resulting in good productquality.

Referring to FIGS. 11 and 12, in some embodiments, the split electricrice cooker further includes a base 100, a cooker body 200, and a presscover 600. The base 100 is provided with a weighing-device mountinggroove 120 at the bottom thereof, and the weighing sensor 510 is fixedin the weighing-device mounting groove 120. The cooker body 200 is aptto rest on the base 100 and is separable with respect to the base 100.The press cover 600 is provided at the bottom of the base 100 andshields the weighing-device mounting groove 120, and the press cover 600is integrally provided with a support leg 520. The support leg 520 issupported on a bottom surface of the cantilever weighing portion 512,and can be deformed along with the press cover 600 and push thecantilever weighing portion 512 upwards.

Further referring to FIGS. 13 and 14, the limiting portion 524 isprovided to the entirety formed by the press cover 600 and the supportleg 520, and the limiting portion 524 can be located on an upper surfaceof a bottom wall of the press cover. By configuring the press cover 600and the support leg 520 into an integral structure, and enabling thesupport leg 520 under pressure to move upwards relative to the base 100and hence push the cantilever weighing portion 512 to deform thecantilever weighing portion 512, the weighing device 510 can obtain acorresponding weight change value based on the deformation amount of thecantilever weighing portion 512, and in such a way, the weightmeasurement of the cooker body is implemented. Due to the integralstructure of the press cover 600 and the support leg 520, the assemblyprocedure is simplified, the production cost is saved, and the splitelectric rice cooker has a more compact structure and is more convenientto assemble.

According to some embodiments of the present disclosure, the press cover600 is provided with a weakening structure. It could be understood thatthe weakening structure means weakening the rigidity of the press cover600 to make the press cover 600 more easily deformed. Thus, when thecooker body is mounted on the base 100, the press cover 600 having theweakening structure is more easily deformed and generates a largeramount of deformation. In such a way, the pushing force of the presscover 600 on the cantilever weighing portion 512 is greater, whichimproves the sensitivity of the weighing device 510 and the accuracy ofthe measurement result.

In a specific embodiment illustrated in FIG. 14, the weakening structureis a weakening groove 603 penetrating the press cover 600. Thus, byproviding the weakening groove 603 in the press cover 600, it ispossible to weaken the rigidity of the press cover 600, save materials,and reduce costs.

Certainly, the present disclosure is not limited thereto, and the presscover 600 may not be connected with the support leg 520. For example, inthe specific embodiment illustrated in FIG. 1, the press cover 600 isprovided with a press-cover clearance hole 601 for the support leg 520to pass downwards.

Thus, when the cooker body is mounted on the base 100, the weighingsensor 510 is deformed under the action of gravity of the cooker body,and the base 100 is able to weigh the cooker body and hence judgeswhether the cooker body matches it based on a weighing result, therebyimproving accuracy of matching the base 100 with the cooker body.Additionally, by sealing the weighing sensor 510 in the weighing-devicemounting groove 120 through the press cover 600, not only the weighingsensor 510 can be protected better, but also the split electric ricecooker has a more beautiful appearance.

In some embodiments, as illustrated in FIG. 7, the weighing sensor 510is provided with a mounting hole 5122 a; an upper surface of the supportleg 520 is fixed with a fixing column 524; the fixing column 524 isprovided through the mounting hole 5122 a, and an upper end of thefixing column 524 is formed with a diameter-enlarged portion 5231; and aradial dimension of the diameter-enlarged portion 5231 is larger than aradial dimension of the mounting hole 5122 a, such that the weighingsensor 510 is clamped and fixed between the diameter-enlarged portion5231 and the support leg 520.

In the specification, it is to be understood that terms such as“central,” “longitudinal,” “transverse,” “length,” “width,” “thickness,”“upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,”“horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,”“counterclockwise” “axially,” “radially,” and “circumferentially” shouldbe construed to refer to the orientation as then described or as shownin the drawings under discussion. These relative terms are forconvenience of description, and do not indicate or imply that thepresent disclosure have a particular orientation or be constructed oroperated in a particular orientation, thus should not be construed tolimit the present disclosure.

In addition, terms such as “first” and “second” are used herein forpurposes of description and are not intended to indicate or implyrelative importance or significance or to imply the number of indicatedtechnical features. Thus, the feature defined with “first” and “second”may comprise one or more of this feature. In the description of thepresent disclosure, “a plurality of” means two or more than two, unlessspecified otherwise.

In the present disclosure, unless specified or limited otherwise, theterms “mounted,” “connected,” “coupled,” “fixed” and the like are usedbroadly, and may be, for example, fixed connections, detachableconnections, or integral connections; may also be mechanical orelectrical connections; may also be direct connections or indirectconnections via intervening structures; may also be inner communicationsof two elements.

In the present disclosure, unless specified or limited otherwise, astructure in which a first feature is “on” or “below” a second featuremay include an embodiment in which the first feature is in directcontact with the second feature, and may also include an embodiment inwhich the first feature and the second feature are not in direct contactwith each other, but are contacted via an additional feature formedtherebetween. Furthermore, a first feature “on,” “above,” or “on top of”a second feature may include an embodiment in which the first feature isright or obliquely “on,” “above,” or “on top of” the second feature, orjust means that the first feature is at a height higher than that of thesecond feature; while a first feature “below,” “under,” or “on bottomof” a second feature may include an embodiment in which the firstfeature is right or obliquely “below,” “under,” or “on bottom of” thesecond feature, or just means that the first feature is at a heightlower than that of the second feature.

Reference throughout this specification to “an embodiment,” “someembodiments,” “an example,” “a specific example,” or “some examples,”means that a particular feature, structure, material, or characteristicdescribed in connection with the embodiment or example is included in atleast one embodiment or example of the present disclosure. Thus, theappearances of the phrases in various places throughout thisspecification are not necessarily referring to the same embodiment orexample of the present disclosure. Furthermore, the particular features,structures, materials, or characteristics may be combined in anysuitable manner in one or more embodiments or examples.

What is claimed is:
 1. A split electric rice cooker, comprising: a baseprovided with a weighing-device mounting groove at a bottom thereof; acooker body apt to rest on the base and separable with respect to thebase; a weighing device provided in the weighing-device mounting groove,and comprising a weighing sensor and a support leg connected with theweighing sensor, the weighing sensor being fixed in the weighing-devicemounting groove and comprising a body portion and a cantilever weighingportion, the cantilever weighing portion being provided to the bodyportion; a press cover provided to the bottom of the base and shieldingthe weighing-device mounting groove, in which the support leg penetratesdownwards through the press cover; wherein a limiting plate is providedin the weighing-device mounting groove, the cantilever weighing portionis located below the limiting plate, and when the cantilever weighingportion is bent upwards and deformed with respect to the body portion,the limiting plate is apt to abut against the cantilever weighingportion to limit a position of the cantilever weighing portion; or thesupport leg is provided with a limiting portion, the limiting portion islocated below the body portion, and the limiting portion is apt to moveupwards with respect to the body portion along with the support leg toabut against a bottom surface of the body portion.
 2. The split electricrice cooker according to claim 1, wherein a support plate and a verticalsnapping plate are provided in the weighing-device mounting groove, andthe weighing sensor is sandwiched between the vertical snapping plateand the support plate.
 3. The split electric rice cooker according toclaim 2, wherein the support plate comprises a first support plate, asecond support plate, a third support plate, and a fourth support plate;the first support plate, the second support plate, the third supportplate, and the fourth support plate are provided to a first side wall, asecond side wall, a third side wall and a fourth side wall of theweighing-device mounting groove respectively; the first side wall, thesecond side wall, the third side wall and the fourth side wall areconnected successively.
 4. The split electric rice cooker according toclaim 1, wherein the body portion is an annular frame body, and thecantilever weighing portion is provided within the body portion.
 5. Thesplit electric rice cooker according to claim 4, wherein the cantileverweighing portion comprises a first cantilever and a second cantilever;the first cantilever is T-shaped and comprises a transverse section anda longitudinal section; the longitudinal section is connected with thebody portion, and two ends of the transverse section are separatelyprovided with the second cantilever.
 6. The weighing device according toclaim 4, wherein the cantilever weighing portion comprises a firstcantilever and a second cantilever; the first cantilever is fixed withthe body portion; the second cantilever is fixed with the firstcantilever and also fixed with the support leg.
 7. The weighing deviceaccording to claim 6, wherein the second cantilever is located at eachof two sides of the first cantilever.
 8. The split electric rice cookeraccording to claim 5, wherein the body portion comprises: a first framebar, a second frame bar, a third frame bar, and a fourth frame barconnected successively; the first frame bar is adjacent to thetransverse section; the first frame bar, the second frame bar, the thirdframe bar, and the fourth frame bar are apt to abut against the firstsupport plate, the second support plate, the third support plate, andthe fourth support plate respectively.
 9. The split electric rice cookeraccording to claim 8, wherein the first support plate has an invertedthree-step structure; the third support plate has an inverted two-stepstructure; the first frame bar is apt to abut against a bottom surfaceof a second step of the first support plate; the transverse section issuspended below a bottom surface of a first step of the first supportplate; the first step of the first support plate constitutes thelimiting plate; and the third frame bar is apt to abut against a bottomsurface of a first step of the third support plate.
 10. The splitelectric rice cooker according to claim 1, wherein a distance betweenthe cantilever weighing portion and the limiting plate is L, deformationdisplacement of the cantilever weighing portion with respect to the bodyportion is associated with the weight to be weighed, and the deformationdisplacement of the cantilever weighing portion is S when the weighingsensor is in a maximum range, in which L≤S.
 11. The weighing deviceaccording to claim 1, wherein a distance between the limiting portionand the body portion is L, deformation displacement of the cantileverweighing portion with respect to the body portion is associated with theweight to be weighed, and the deformation displacement of the cantileverweighing portion is S when the weighing sensor is in a maximum range, inwhich L≤S.
 12. The weighing device according to claim 5, wherein thesupport leg comprises a support-leg body and a support block provided tothe support-leg body, the support block being fixed with the secondcantilever.
 13. The weighing device according to claim 12, whereinrespective lower surfaces of the first cantilever and the secondcantilever are flush with each other, and both abut against an uppersurface of the support block.
 14. The weighing device according to claim12, wherein the second cantilever is provided with a mounting hole; theweighing device further comprises a weighing-device threaded fastener,and the weighing-device threaded fastener is fixed by being threadedwith the support block after passing through the mounting hole from thetop downwards.
 15. The weighing device according to claim 12, wherein adistance between facing-away outer sides of the two second cantileversis greater than or equal to a transverse length of the support block.16. The weighing device according to claim 12, wherein the limitingportion is provided to an end face of each of two transverse ends of thesupport block.
 17. The weighing device according to claim 16, wherein ahollowed groove is defined between the body portion and the secondcantilever, and an outer side surface of the limiting portion is outsidean outer edge of the hollowed groove.
 18. The weighing device accordingto claim 5, wherein the second cantilevers at two sides of the firstcantilever are arranged symmetrically, and the first cantilever isspaced apart from and arranged parallel to the second cantilever. 19.The split electric rice cooker according to claim 1, wherein the presscover and the support leg are integrally formed, and the support leg issupported on a bottom surface of the cantilever weighing portion and isable to be deformed along with the press cover and push the cantileverweighing portion upwards; or the press cover is provided with apress-cover clearance hole for the support leg to pass downwards. 20.The split electric rice cooker according to claim 1, wherein theweighing sensor is provided with a mounting hole, an upper surface ofthe support leg is fixed with a fixing column, the fixing column isprovided through the mounting hole and has an upper end formed with adiameter-enlarged portion, and a radial dimension of thediameter-enlarged portion is larger than a radial dimension of themounting hole, such that the weighing sensor is clamped and fixedbetween the diameter-enlarged portion and the support leg.